This bar chart ranks countries by their 2024 GDP in billions of U.S. dollars, using a horizontal layout with rotated country labels and tick marks for readability. The visualization loads a CSV from a GitHub gist via `d3.csv`, filters it to the year 2024, and sorts values in descending order. It renders an SVG using `d3.scaleBand` for the x-axis, `d3.scaleLinear` for the y-axis, and includes axes via `d3.axisBottom` and `d3.axisLeft`. Tooltips with exact values appear on each bar using SVG `<title>` elements.